Kaii to Otome to Kamikakushi

A former writer turned bookstore clerk, Ogawa Sumireko hopes to return to her literary ambitions. As unexplained events begin happening in the city, she partners with her coworker, Adashino Ren, who is known for his flirtatious nature. Together, they use their knowledge of the occult to investigate these strange happenings. However, Ren has a personal secret he keeps hidden. As they dig deeper, their combined efforts lead them toward unknown discoveries.